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Saturday, October 15, 2022

Activity 2.3 Class 8 Science Friends and Foe

 Activity 2.3 Class 8 Science Friends and Foe

In this post, you will find NCERT Science Class 8 Chapter 2 Friends and Foe Activity solutions.  Class 8 science chapter 2 consists of NCERT Activity 2.3 Class 8 Science Explanation with a conclusion.


 

NCERT Activity 2.3 Class 8 Science Explanation with a conclusion


You are suggested to study NCERT activity 2.3 class 8 science explanation with a conclusion so that you can attempt questions based on activity 2.3 class 8 science.


Activity 2.3 Class 8 Science

    ·     Take ½ kg flour (atta/maida).

    ·     Add some sugar and mix with warm water.

    ·     Add a small amount of yeast powder and knead to make a soft dough.

    ·     What do you observe after two hours.

    ·     Did you find the dough rising?

       

Activity 2.3 Class 8 Science Friends and Foe
 Activity 2.3 Class 8 Science Friends and Foe

Procedure activity 2.3 Class 8 Science

   ·     At first we take some flour in a pan

   ·     And add some sugar to it.

   ·     We add some amount of yeast powder.

   ·     After that we add some lukewarm water.

   ·     We knead to make the dough and keep it for some time.


Observation activity 2.3 Class 8 Science

After two hours, we see the dough rises up and become fluffy.


Explanation activity 2.3 Class 8 Science

This happens because yeast reproduces rapidly in the presence of sugar and produces carbon dioxide gas. This gas gets trapped in the dough and makes it rise.


Conclusion activity 2.3 Class 8 Science

In this activity, we can see the action of yeast on flour or Maida. This method is used to make bread (double roti).


Related Topics

1. Activity 2.2 Class 8 Science

2. Activity 2.1 Class 8 Science

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